Khan steam room can produce negative ions autonomic nervous system function and stability, emotional stability, and often gives a positive, vibrant happy mood, to enhance immunity, fight disease and create a good foundation. Khan steam room can produce far infrared active reticuloendothelial system function, the blood gamma globulin levels increased in order to improve the body's resistance to disease. Khan steam room to improve the quality and quantity of anion leukocytes, under normal circumstances, the cells tend to charge a negative potential, such as white blood cells and other cellular proteins, the body can increase the suction anion charge increased due to the negative potential, as well as generating a low potential to high potential changes. This is the blood of the charge equilibrium is sensitive. Also great role, scientists proved by experiments, the role of humoral and cellular aeroanion mainly electrochemical properties of protoplasm. The positive and negative charges based on different body fluids can increase or decrease the stability of the micro-materials, experimental and clinical observations proved negative ions to improve the quantity and quality of white blood cells around a significant role. Khan steam room of negative ions can enhance the function of white blood cells engulf bacteria, so the infectious diseases role of adjuvant therapy. Medical knowledge tells us. Once the bacteria enter the body, the body's white blood cells immediately mobilize throughout the siege, swallowed eliminated, to prevent bacterial growth and proliferation. Experiments show that negative ions can strengthen leukocyte phagocytosis, which may be activated anion leukocyte function. Because the various components constituting the cells mainly protein, the protein with the electric charge depending on the pH of body fluids, in the acidic environment increased positive charge and negative charge in alkaline environment increases. Who are in the blood lymph alkaline health status, while the protein is negatively charged colloid, a large number of negative ions inhalation, greatly increasing the negative charge of the lung and the blood circulation, thereby enhancing the phagocytosis of leukocytes, in addition, a suction negative ions of oxygen to the increase of leukocyte phagocytosis are not unrelated. Because bacteria are eliminated, the biochemical metabolic processes of leukocytes is vital oxygen. In short, negative ions enhance the body's resistance to disease plays an important role.